3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { protected $var; function initClass() { $this->var = __CLASS__; } function getVar() { assert($this->var !== null); // ensure initClass was called return $this->var; } } class bar extends foo { function initClass() { $this->var = __CLASS__; } } class baz extends bar { function initClass() { $this->var = __CLASS__; } } $baz = new baz; call_user_func([$baz, "foo::initClass"]); var_dump($baz->getVar());
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Callables of the form ["baz", "foo::initClass"] are deprecated in /in/qv1ij on line 29 string(3) "foo"
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
string(3) "foo"
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/qv1ij on line 29
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/qv1ij on line 29
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/qv1ij on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/qv1ij on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/qv1ij on line 4
Process exited with code 255.
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